A majority of the global net primary production of mangroves is unaccounted for by current carbon budgets. It has been hypothesized that this ''missing carbon'' is exported as dissolved inorganic carbon (DIC) from subsurface respiration and groundwater (or pore-water) exchange driven by tidal pumping. We tested this hypothesis by measuring concentrations and d 13 C values of DIC, dissolved organic carbon (DOC), and particulate organic carbon (POC), along with radon ( 222 Rn, a natural submarine groundwater discharge tracer), in a tidal creek in Moreton Bay, Australia. Concentrations and d 13 C values displayed consistent tidal variations, and mirrored the trend in 222 Rn in summer and winter. DIC and DOC were exported from, and POC was imported to, the mangroves during all tidal cycles. The exported DOC had a similar d 13 C value in summer and winter (, 230%). The exported d 13 C-DIC showed no difference between summer and winter and had a d 13 C value slightly more enriched (, 222.5%) than the exported DOC. The imported POC had differing values in summer (, 216%) and winter (, 222%), reflecting a combination of seagrass and estuarine particulate organic matter (POM) in summer and most likely a dominance of estuarine POM in winter. A coupled 222 Rn and carbon model showed that 93-99% of the DIC and 89-92% of the DOC exports were driven by groundwater advection. DIC export averaged 3 g C m 22 d 21 and was an order of magnitude higher than DOC export, and similar to global estimates of the mangrove missing carbon (i.e., , 1.9-2.7 g C m 22 d 21 ).

Abstract. In this paper we provide an account of the property-led boom and bust which has brought Ireland to the point of bankruptcy. Our account details the pivotal role which neoliberal policy played in guiding the course of the country's recent history, but also heightens awareness of the how the Irish case might, in turn, instruct and illuminate mappings and explanations of neoliberalism's concrete histories and geographies. To this end, we begin by scrutinising the terms and conditions under which the Irish state might usefully be regarded as neoliberal. Attention is then given to uncovering the causes of the Irish property bubble, the housing oversupply it created, and the proposed solution to this oversupply. In the conclusion we draw attention to the contributions which our case study might make to the wider literature of critical human geographies of neoliberalism, forwarding three concepts which emerge from the Irish story which may have wider resonance, and might constitute a useful fl eshing out of theoretical framings of concrete and particular neoliberalisms: path amplifi cation, neoliberalism's topologies and topographies, and accumulation by repossession.

In recent years there has been a turn within cartographic theory from a representational to a processual understanding of mapping. Maps have been re-conceptualised as mappings that ceaselessly unfold through contingent, citational, habitual, negotiated, reflexive and playful practices, embedded within relational contexts. In this paper, we explore what this rethinking means for cartographic epistemology, contending that attention needs to be focused on understanding cartography through the lens of practices -how mappings are (re)made in diverse ways (technically, socially, bodily, aesthetically and politically) by people within particular contexts and cultures as solutions to everyday tasks. We detail how these practices can be profitably examined using a suite of methods -genealogies, ethnographies, ethnomethodology, participant observation, observant participation and deconstruction -that are sensitive to capturing and distilling the unfolding and contextual nature of mapping. To illustrate our argument we narrate the unfolding production and consumption of a set of mappings of so-called 'ghost estates' in Ireland, a public geography project that has been covered over 300 times in local, national and international media and that has contributed to Irish public discourse and policy debates.

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